Arcade game developers implement multi-layered security measures to prevent cheating and protect their revenue streams. Physical security begins with locked, reinforced cabinets and specialized security screws that deter casual tampering. Internally, developers use custom security chips and encrypted ROMs that contain proprietary code, making duplication extremely difficult. These systems often include checksum verification that detects modified code and triggers shutdowns.

Many arcade PCBs feature anti-tamper mechanisms that erase high scores or clear memory when cabinets are opened unexpectedly. Some advanced systems even employ tilt sensors that punish players for physically manipulating machines. For connection-based arcades, developers implement secure communication protocols between machines to prevent score manipulation.

Arcade operators contribute to security through regular firmware updates that patch discovered vulnerabilities. They also monitor machine performance data for anomalies that might indicate exploitation. Despite these measures, determined hackers sometimes find weaknesses, leading to an ongoing cat-and-mouse game between developers and those seeking to exploit arcade systems. The fundamental goal remains preserving game integrity while maintaining the authentic arcade experience that players expect.